you can actually see areas light up when that section of the brain is being used. well, researchers are using these scans to learn what goes on inside of the brains of dogs. the images show that dogs pay close attention to their owners, especially when owners might have a treat in their pocket. they needed a brain scan to figure that out? >> this report is brought to you by paramount pictures. >> ♪ oh >> ♪ yeah >> in the comedy "fun size," teen star victoria justice plays wren. she's a high-school student who just wants to go to the biggest party of the year, thrown by one of the most popular guys in school. >> oh, my god. he's coming over! >> you're coming to the party, right? >> we will definitely be there. >> [ breathes sharply ] >> but what wren gets is one crazy, adventure-filled night, and it all starts with her little brother. >> albert! for once, he's not my problem. >> oh, no. i forgot to tell you -- you're gonna watch albert tonight. >> no. mom, the party -- don't do this to me. >> i love you. thank you. you're welcome. >> taking care of albert turns